Roller-door latch



P. H. WooLHl-:THER

ROLLER DOOR LATCH Filed Sept. 26 1921 Inn/endo? P52102, h WQLWFHER..

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PAUL HOHER VTOGLHETI-IER, F TRUAX, SASKATCHEWAN, CANADA.

ROLLER-DOOR LATCH.

Application led. September 26, 1921. Serial No. 503,449.

.To all whom t may cou-cern.'

Be it known that ll, PAUL Horrnn Woon- HETHER, a citizen of the Dominion of Canada, residing at Truax, in the county of QuAppelle and Province of Saskatchewan, Canada, have invented certain new and useful Improvements in Roller-Door Latches, of which the following is a specilication.

The present invention relates toa roller door latch adapted to be positioned on roller or sliding doors and the principal object is to provide a latch of the character described which will automatically lock when the said doors are closed.

A further object is to provide a latch of the character described which may be opened from either side of the said doors.

A still further object is to provide a latch of the character described which may be locked.

With these and other objects in View, the invention consists in the construction, combination and arrangement of parts as will be hereinafter fully described, illustrated in the accompanying drawings and pointed out in the claims hereunto appended.

Figure 1 Vis a fragmentary detail illustrating my present invention positioned on a pair of sliding doors.

Figure 2 is a section on line 2-2 of Figure 1.

Figure 3 is a similar section illustrating the sliding doors in partly open position and the latch disengaged.

VFigure 4 is a fragmentary section of the handle or knob positioned on the inner side of the sliding doors.

Figure 5 is a fragmentary plan view of the same.

Referringto the drawings, like numerals designate like parts in the various drawings.

The numerals 6 and 7 indicate sliding or roller doors which may be ofthe ordinary construction. rllhe body member 8, positioned on the door 6, is preferably stamped from Sheet metal and has a hinge 9 formed on one end from the body member 8 as indicated diagrammatically. An extension 10 projects intermediate the said hinge and has a lug 11 extending at right angles from it. This lug is functioned to bump against the doorframe and prevent the sliding doors from entering too farinto the frame. I The body member 12 is pivotally mounted in-V termediate the hinge member 9 positioned cn the body member 8. A handle member 13 is substantially mounted on this: body member 12. Handle member 14 is positioned on the inner side of the sliding door 6 and has 'a triangular lugl projecting from its outer end. A triangular aperture 16 is positioned for the reception of the triangular lug 15. Abutments 17 in conjunction with the cotter pin 18, prevent displacement of the body member 12 on the handle member 14. The handle member 14 is of ordinary construction and is tensioned outwardly by the coil spring 19 positioned over its shank 20. This coil spring is also functioned to keep the latch normally in engaged position. A handle member 21 is positioned as indicated diagrammatically and is substantially mounted to the sliding door 6 by suitable means. A bodyl member 22, substantially mounted on the door 7, has a triangularly contgurated latch on oneend indicated 'by the numeral 23 for engagement with the aperture 24 configurated in the end vof the body member 12. Aperture 25 is positioned in this` triangular member 23 and when the latch is engaged, a padlock may be positioned in this a erture 25 for locking the sliding doors. lug 26 projects at right angles from the body member 22 and has the same function as that of the lug member 11. Handle member 27 is positioned on the inner side ofthe door member 7.

When the sliding doors are in open position and it is; desired to close the same, the sliding doors are brought together and the slanted face 28 of the triangular member 23 strikes the outer end 29 of the body member 12, forcing the same outwardly. The tension of the coil spring 19 draws the aperture 24 over the triangular member 23 and locks the sliding doors.

When it is desired to open the sliding ing or closing the same :from the inner side.

From the foregoing, it is thought that the construction of my invention will be clearly understood, and therefore, a more extended explanation has been omitted.

What l claim as new is:

l. A latch of the character described posi tioned on a pair of sliding doors and adapted to lautomatically lock thesaid sliding doors on the closing movement of the said doors, the said latch consisting of vprimary and secondary body members positioned on the said sliding doors ,and one of said members formed With a lug to engage the door frame, a latch member pivotally mounted on the said primary body member, there being an aperture configurated in the said latch member for engagement with a triangular member conligurated onthe said secondary body member on the closing movement of the said Sliding doors. Y

.2.. Alatch of the character described positioned on a pair of sliding doors and adapted to automatically lock the said slidingl doors on the closingmovement of the said doors, the said latch consisting of primary and secondary body members positioned on the i said sliding doors, alatch' member pivotally mounted on the said primary body member,

there being an aperture congurated in the said latch member for engagement with a triangular member conigurated on the said secondary body member on the closing movement of the said sliding doors andkmeans disengaging the said latch members when in closed position, said means comprising a shank member having a handle conigurated on its outer end, means engaging the said shank member with the said latchr member and means engaging the said latch member When in normal position andr a. spring-actu-V ated member pivotally connected With Vsaid latch member and operable from the opposite side of the door. Y

3. Alatch of the character described positioned on a pair of sliding doors and adapted to 'automatically lock the said sliding doors on the closing movement of the said sliding doors and means carried by the latch member for determining the open distance of the said sliding doors. g

ln testimony whereof, I hereunto aiiix my signature in the presence of tWo Witnesses.

PAUL'HOMER WooLHETHER.

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